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Finding the Fourth Proportional to 56,611.98, 84,893.40 and 28,514.70

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Solution

The fourth proportional to 56,611.98, 84,893.40 and 28,514.70 is: 42,759.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,611.98 : 84,893.40 = 28,514.70 : x
  2. Step 2: Convert to fraction form
    56,611.98/84,893.40 = 28,514.70/x
  3. Step 3: Cross multiply
    56,611.98x = 84,893.40 × 28,514.70
  4. Step 4: Simplify right side
    56,611.98x = 2,420,709,832.98
  5. Step 5: Solve for x
    x = 2,420,709,832.98/56,611.98
  6. Step 6: Final answer
    x = 42,759.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.